Aircraft have been grounded and flights diverted in the Cape following a power outage at the Cape Town International Airport.According to the Airports Company South Africa (Acsa) the airport is experiencing a power supply challenge impacting runway lights, air-side fire rescue and air traffic navigation services.”As a result, flights are not able to land or depart.”Technicians are onsite trying to establish the cause of the power outage and resolve the challenge as soon as possible,” Acsa said. According to FlySafair, several flights had to be diverted.In a statement on its site, the…